Magnetically restored golf practice device with visual and audio display

A golf practice device comprising:

• a supporting base, a ball means having a golf ball secured on a linking arm having a sleeve pivotally mounted on a shaft erected on the base, a rotor magnet means having at least two outer magnetic poles having opposite polarities with each other and diametrically secured on two opposite end portions of the sleeve, a stator magnet means having at least two inner magnetic poles having opposite polarities with each other and diametrically secured on two opposite side portions of a housing for surrounding said rotor magnet means for a mutual attraction between said stator magnet means and said rotor magnet means, a power generating means having a power generating core wound with coil thereon and surrounding said rotor magnet means for generating power when rotating the golf ball, the sleeve and said rotor magnet means with respect to the core when hitting the golf ball, and a display means electrically connected to said power generating means for converting a power signal from said power generating means to a visual and audio signal for a visual and audio display for indicating a striking strength when hitting the golf ball by a player, and upon magnetic attraction between said stator magnet means and said rotor magnet means, the golf ball after being rotated will be stopped at a starting position as automatically restored by the magnetic attraction between said stator and rotor magnet means.